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Because I haven't seen any videos talking about lash pad sizing, cam degreeing, degree wheels, or TDC on an L28, I figured I'd take a shot at it.

Please excuse my video production qualities or my lack of expertise.  Like i said, just wanted to take a shot at these subjects.

Please comment if i've missed something big or small.

thanks

joe

 

lash pad sizing.... https://www.youtube.com/watch?v=TQSf2TinWc4&t=215s

TDC short block....https://www.youtube.com/watch?v=SvcXhv-HZ_0

TDC validation with head installed ....https://www.youtube.com/watch?v=09AJpZ9z0EY

Intake cam lobe center validation...  https://www.youtube.com/watch?v=895VzDZA8pA

 

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Thanks for sharing!  You asked for comments so here are a few....

 

Who is your intended audience?  Novices?  If so, I would recommend covering more of the basics.  Like setting up from the beginning.

 

I the first video what you are really doing is verifying the cam wipe pattern after you installed the correct lash pad. Was it just blind luck that you got the correct lash pad the first time?  How did you pick the lash pads you are using? You should address that in your video to be helpful in "lash pad sizing." 

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I guess my intended audience is DIYer's or anybody who's looking for a little more info.

you're right about the lash pad sizing.  It wasn't blind luck, maybe a decent guess.

 

I made sense that with the new cam having the same base diameter that a closer to stock pad would be required.

 

I thought it might help me figure it out by going thru it and explaining it.

I'm always open for comments and help.

 

joe

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Yah, it's a very informative thread.  About half way down it tells you how to select lash pad thickness on a budget - with a standard aftermarket lash pad (flat bottom) and small pieces of feeler gauge.

 

 

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It does look new, which leads me to suspect it's a CWC cam core. As far as I know there are only two cam cores - Nissan, denoted by "JAPAN" cast on the core, and aftermarket denoted by "CWC." But, I could be completely wrong.  I do know that CWC cam cores are not hardened correctly and fail early in life

 

By the way, the experts on these engines typically communicate on the Facebook Group "Church of the L Series." Go there if you want more opinions. Like any social media site, you have to filter thru those who think they are experts and those that are experts.

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Thanks for the reply and info.  

I did not see any 'cwc' marked anywhere on the cam.

Back journal is stamped 'erson', '280n' and '1187'.

I could take the cam to my local machine shop, they should be able to measure hardness.

I'll check out the FB page.

thanks again

joe

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